Near sea-surface line-of-sight (LoS) radiowave propagation at 5 GHz was investigated through narrowband measurements in this paper. Results of the received signal strength with a transmission distance of up to 10 km were examined against free space loss model and 2-ray path loss model. The experimental results have good agreement with the predicted values using the 2-ray model. However, the pre...

Modern processors come close to executing as fast as true dependences allow. The particular dependences that constrain execution speed constitute the critical path of execution. To optimize the performance of the processor, we either have to reduce the critical path or execute it more efficiently. In both cases, it can be done more effectively if we know the actual instructions that constitute ...

Mobile Ad Hoc Networks (MANETs) consist of mobile nodes which are not controlled by any base station. Mobile nodes act as a major role because of performing the data transmission, route discovery, route maintenance. The packet loss occurs often while the nodes are moving out of range, or the node has not enough either path and link stability or neighbor node stability. In this paper we propose ...

A new three dimensional (3D) ray-tracing propagation prediction tool (3D MRT-1) is being developed for characterisation of wideband mobile radio channel. It calculates the amplitude, phase, angle-of-departure (AOD), angle-of-arrival (AOA), optical path length and received field strength for each valid reflected or diffracted ray path. It also constructs the power delay profile (PDP) and extract...